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Ultrasound measurement and grading of rotator cuff and shoulder joint disease in patients with inflammatory arthritis: a reliability study

机译：炎性关节炎患者肩袖和肩关节疾病的超声测量和分级：可靠性研究

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Introduction To determine the inter-observer reliability of ultrasound measurements and grading of rotator cuff and shoulder joint disease in patients with inflammatory arthritis. nnMethods Both shoulders of 50 patients (56 ± 18 years, 39F:11M) with inflammatory arthritis, being treated with biologics, were scanned by two experienced radiologists. Rotator cuff and articular surface features in the shoulder joint were measured and graded using previously published ultrasound scoring methods. nnThe inter-observer agreements for rotator cuff tendon, glenohumeral joint (GHJ) and subacromial subdeltoid bursal (SSB) measurements were obtained with intraclass correlation coefficients (ICC) for continuous data. Those for the grade of rotator cuff tendon tear, humeral head (HH) and acromio-clavicular joint (ACJ) appearances were analysed with kappa (K) statistics for categorical data. nnResults Moderate inter-observer agreement (ICC = 0.58, P ≤ 0.01) was shown for the supraspinatus tendon thickness. Poor agreement (ICC < 0.49) was found for the thickness of the subscapularis (P ≤ 0.01), infraspinatus (P ≤ 0.05) and biceps tendons. There was excellent agreement for the SSB thickness (ICC = 0.88, P ≤ 0.01) and poor agreement for GHJ distance. nnModerate agreement (K = 0.57, P ≤ 0.01) for grading of a supraspinatus tendon tear was found while excellent agreement for the subscapularis (K = 0.81, P ≤ 0.01), infraspinatus and biceps (both K = 1, P ≤ 0.01) tendons was noted. The most common agreement occurred for no tear or a complete tear. Poor agreement (K < 0.49) was demonstrated for grading of HH erosions and ACJ appearances. nnConclusion Ultrasound measurement of the subacromial subdeltoid bursa was reliable between observers, as was detection of the presence or absence of a complete rotator cuff tendon tear. Reliability was limited for measurements of rotator cuff tendon thickness, grading partial tendon tears or identification of subtle shoulder joint pathology.
机译：简介为了确定炎症性关节炎患者的超声测量观察者之间的可靠性以及肩袖和肩关节疾病的分级。 nn方法由两名经验丰富的放射科医生对50例接受生物制剂治疗的炎性关节炎患者（56±18岁，39F：11M）的双肩进行了扫描。使用先前发表的超声评分方法对肩袖中的肩袖和关节表面特征进行测量和分级。 nn对于连续数据，获得了肩袖肌腱，盂肱关节（GHJ）和肩峰下三角肌下囊（SSB）测量值的观察者间协议。使用kappa（K）统计数据分析了肩袖肌腱撕裂，肱骨头（HH）和肩锁骨关节（ACJ）外观等级的那些数据。结果显示，中上肌腱厚度适中，观察者之间的一致性（ICC = 0.58，P≤0.01）。肩s下肌（P≤0.01），鼻下肌（P≤0.05）和二头肌肌腱的厚度一致性差（ICC <0.49）。 SSB厚度的一致性极好（ICC = 0.88，P≤0.01），GHJ距离的一致性差。 nn发现椎弓上肌腱撕裂程度适中（K = 0.57，P≤0.01），而肩s下肌（K = 0.81，P≤0.01），下斜肌和二头肌（K = 1，P≤0.01）肌腱的一致性良好被注意到。最常见的约定是没有撕裂或完全撕裂。对于HH侵蚀和ACJ外观的分级，证明一致性差（K <0.49）。结论观察者之间的肩峰下三角肌滑囊的超声测量是可靠的，检测是否存在完整的肩袖腱撕裂也很可靠。测量肩袖肌腱厚度，对部分肌腱撕裂进行分级或确定微妙的肩关节病理的可靠性受到限制。

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